// --------------------------------------------------------------------------------------------------------------------
// <copyright file="ConfigurationSchema.cs" company="Open Trader">
//   Copyright (c) David Denis (david.denis@systemathics.com)
// </copyright>
// <summary>
//   |  Open Trader - The Open Source Systematic Trading Platform
//   |
//   |  This program is free software: you can redistribute it and/or modify
//   |  it under the terms of the GNU General Public License as published by
//   |  the Free Software Foundation, either version 2 of the License, or
//   |  (at your option) any later version.
//   |
//   |  This program is distributed in the hope that it will be useful,
//   |  but WITHOUT ANY WARRANTY; without even the implied warranty of
//   |  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//   |  GNU General Public License for more details.
//   |
//   |  You should have received a copy of the GNU General Public License
//   |  along with this program.  If not, see http://www.gnu.org/licenses
//   |
//   |  Up to date informations about Open Trader can be found at :
//   |    http://opentrader.org
//   |    http://opentrader.codeplex.com
//   |
//   |  For professional services, please visit us at :
//   |    http://www.systemathics.com
// </summary>
// --------------------------------------------------------------------------------------------------------------------

namespace Org.OpenTrader.Framework.LiveObjects
{
    #region Using Directives

    using System;
    using System.Collections.Generic;
    using System.Linq;

    using Org.OpenTrader.Framework.LiveObjects.Interfaces;

    #endregion

    /// <summary>
    /// The configuration schema.
    /// </summary>
    [Serializable]
    public class ConfigurationSchema : IConfigurationSchema
    {
        #region Constants and Fields

        /// <summary>
        /// The attributes.
        /// </summary>
        private readonly IDictionary<string, ConfigurationFieldAttribute> attributes =
            new Dictionary<string, ConfigurationFieldAttribute>();

        #endregion

        #region Constructors and Destructors

        /// <summary>
        /// Initializes a new instance of the <see cref="ConfigurationSchema"/> class.
        /// </summary>
        /// <param name="attributes">
        /// The attributes.
        /// </param>
        public ConfigurationSchema(Attribute[] attributes)
        {
            foreach (var a in attributes)
            {
                var attribute = a as ConfigurationFieldAttribute;
                if (attribute != null)
                {
                    this.attributes[attribute.Name] = attribute;
                }
            }
        }

        #endregion

        #region Properties

        /// <summary>
        /// Gets Fields.
        /// </summary>
        public string[] Fields
        {
            get
            {
                return this.attributes.Keys.ToArray();
            }
        }

        #endregion

        #region Implemented Interfaces

        #region IConfigurationSchema

        /// <summary>
        /// The get field descriptor.
        /// </summary>
        /// <param name="fieldName">
        /// The fieldName.
        /// </param>
        /// <returns>
        /// </returns>
        public ConfigurationFieldAttribute GetFieldDescriptor(string fieldName)
        {
            if (this.attributes.ContainsKey(fieldName))
            {
                return this.attributes[fieldName];
            }

            return null;
        }

        #endregion

        #endregion
    }
}